On this complex “Rose Croix d’Heredom dit de Kilwinning” (‘Rose Cross of Heredom and Kilwinning’) tracing board, we see an enormous naked man (bottom right) with his legs on either side of a water. A ship is sailing through his legs. I think this is a reference to (the strait of) Hercules (later strait of Gibraltar). I haven’t found the ritual significance yet.
BnF Smith-Lesouëf 126